Improvement in sash-fasteners



C. W, P'ENFIELD. .SASH FASTENER.

No. 190,074. Patented April 24, 1877.

MFETEHS, PHOTU-LITHOGRAPHQL WASNING'ION. I10.

UNITED STATES PATENT Grrron CHARLES PENF-IELD, OF NEW BRITAIN,CONNECTICUT.

IMPROVEMENT m SASH-FASTENERS.

'Specification forming part of Letters Patent'No. 190,074, dated April24, 1877; application filed April 6, 1877.

To all whom it may concern Be it known that I, O. W. PENFIELD, of NewBritain, in the county of Hartford, and in the State of Connecticut,have invented certain new and useful Improvements in Sash- Stops; and dohereby declare that the following is a full, clear, and exactdescription thereof, reference being bad to the accompanying drawing,making a part of this specification, in which- Figure 1 is a perspectiveview of my improved fastener. Fig. 2 is a like view of the partscomposing the same separated from each other, and Fig. 3 a centrallongitudinal section of said fastener.

Letters of like name and kind refer to like parts in each of thefigures.

The design of my invention is to increase the efficiency and ease ofoperation of sashfasteners which are secured within the jamb of awindow, and engage with the side edge of a sash; and it consists in thepeculiar construction of the casing or shell and the bolt, and theircombination with each other, substantially as and for the purposehereinafter specified.

In the annexed drawing, A represents the casing of my device, which hasthe form of a hollow cylinder, and upon its periphery is provided with ascrew-thread, a, by means of which said casing is secured within acorresponding opening that is provided in the jamb of a window.

Within opposite sides of the casing A are provided two radial slots, a,which have a width of about one-eighth of an inch, and extendlongitudinally from the inner end of said casing about two-thirds thedistance to its outer end, while within said-end is provided an oblongslot, a, that is in a line radially with said slots a.

Within the slot a is loosely fitted a bolt, B, which has the form shownin Figs. 2 and 3, and is capable of longitudinal motion within saidslot. provided with a central stud, b, and at each Upon its inner endsaid bolt is edge has an arm, 11, which extends inward in a line withthe body of said bolt, and at its edge is provided with a lug, b, thatextends laterally outward into the contiguous slot at. A longitudinalarm, 0', extends outward from the outer end at one edge of said bolt,and at its end is enlarged, as shown.

A spiral spring, C, placed around the stud b, and extending between theinner end of the bolt B and the corresponding end of the casing A, holdssaid bolt at the outer limit of its motion with a yielding pressure.

It will be seen that' the arms b, with their lugs I), perform the doubleoffice of guides for causing the bolt B to maintain a position in linewith the axis of the casing A, and of stops to limit the longitudinalmotion of said bolt, the impingement of said arms against the inner endof said casing arresting motion in such direction, While the contact ofsaid lugs with the outer ends of the slots a limits the outward motionof said bolt.

In the construction of the fastener the bolt B is formed with its arms bbent inward sufficiently to permit the lugs b to pass through the slota. After said bolt is in position within said casing, said'arms are bentlaterally outward until said lugs are in place within said slots.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s- As an improvement in sash-fasteners, the

casing A, provided with the peripheral screwhead a, and slots a and a,the bolt B, having the prong b, arms b, lugs 12, and arm b, and thespiral spring C, said parts being constructed and combined in the mannerand for the purpose substantially as specified.

In testimony that I claim the foregoing I have hereunto set my hand this31st day of March, 1877.

CHAS. W. PEN FIELD. Witnesses:

LOREN D. PENFIELD, HENRY NASH.

